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05 May 2016 description
  • As of 4 May 2016, 57 countries and territories report continuing mosquito-borne transmission; for 44 countries this is their first documented Zika virus outbreak (Fig. 1).

  • Mosquito-borne transmission (Table 1):

  • 44 countries are experiencing a first outbreak of Zika virus since 2015, with no previous evidence of circulation, and with ongoing transmission by mosquitos.

  • 13 countries reported evidence of Zika virus transmission between 2007 and 2014, with ongoing transmission.

05 May 2016 description

The following syndromes have been flagged:

· Diarrhoea: Federated States of Micronesia (FSM), Fiji · Influenza-like Illness: American Samoa, FSM · Prolonged fever: American Samoa

Other updates:

Influenza

· Increase number of cases has been reported from Pohnpei state, FSM. Influenza A (H1N1) pandemic has been identified. Source: FSM Ministry of Health.

Zika virus

28 Apr 2016 description

ZIKA VIRUS DISEASE, MICROCEPHALY AND GUILLAIN-BARRÉ SYNDROME

 As of 27 April, 55 countries and territories report continuing mosquito-borne transmission; for 42 countries this is their first documented Zika virus outbreak (Fig. 1).

 Mosquito-borne transmission (Table 1):

 42 countries are experiencing a first outbreak of Zika virus since 2015, with no previous evidence of circulation, and with ongoing transmission by mosquitos.

 13 countries reported evidence of Zika virus transmission between 2007 and 2014, with ongoing transmission.

28 Apr 2016 description

The following syndromes have been flagged:

· Diarrhoea: Fiji, Palau, Tokelau, Wallis & Futuna

· Influenza-like Illness: American Samoa, New Caledonia

· Prolonged fever: American Samoa

Other updates:

Chikungunya

25 Apr 2016 description

Les syndromes suivants ont été signalés :

  • Maladies diarrhéiques : Niue, Tokelau

  • Syndrome grippal : Samoa américaines, Tokelau, Nouvelle-Calédonie

Autres relevés :

Chikungunya

25 Apr 2016 description

PDC - 20P - TRMM2

The TRMM (Tropical Rainfall Measuring Mission) product contains near-real time precipitation accumulation estimates on a 0.25 degree latitude/longitude grid covering the globe from 50 S to 50 N latitude. This map represents a 3-Day time period.

24 Apr 2016 description

Samoans are counting the cost of Tropical Cyclone Amos, which hit the country on Saturday night as a category three storm, with some surprised by an inaccurate forecast.

The Pacific nation escaped the worst after Amos sped past the main islands and weakened from a category four system that was earlier predicted to strike the capital, Apia, directly.

But damage has been reported to some roads, and heavy rain has brought flooding, particularly in the east of Suvai'i island.

24 Apr 2016 description

JTWC SUMMARY:TROPICAL CYCLONE 20P (AMOS), LOCATED APPROXIMATELY 79 NM EAST- NORTHEAST OF PAGO PAGO, HAS TRACKED EASTWARD AT 07 KNOTS OVER THE PAST SIX HOURS. THE CURRENT POSITION IS BASED ON RECENT SATELLITE FIXES FROM PGTW, KNES, AND PHFO, A 240844Z AMSU IMAGE, AND A 240932Z AMSU IMAGE. THERE IS LOW CONFIDENCE IN THE INITIAL POSITION DUE TO THE INCREASINGLY INDISTINCT SIGNATURE OF THE LOW LEVEL CIRCULATION CENTER.

24 Apr 2016 description
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JTWC SUMMARY: TROPICAL CYCLONE 20P (AMOS), LOCATED APPROXIMATELY 46 NM NORTHEAST OF PAGO PAGO, HAS TRACKED EASTWARD AT 07 KNOTS OVER THE PAST SIX HOURS. THE CURRENT POSITION IS BASED ON RECENT SATELLITE FIXES FROM PGTW, KNES, PHFO, AND ABRF AND A 240624Z SSMIS IMAGE. THERE IS LOW CONFIDENCE IN THE INITIAL POSITION DUE TO THE INCREASINGLY INDISTINCT SIGNATURE OF THE LOW LEVEL CIRCULATION CENTER. THE INTENSITY OF 50 KNOTS IS SET WITHIN A RANGE OF SUBJECTIVE DVORAK CURRENT INTENSITY ESTIMATES, BETWEEN 45 AND 65 KNOTS, AND IS CONSISTENT WITH THE PREVIOUSLY-OBSERVED WEAKENING TREND.

24 Apr 2016 description

JTWC SUMMARY: TROPICAL CYCLONE 20P (AMOS), LOCATED APPROXIMATELY 30 NM NORTHWEST OF PAGO PAGO, HAS TRACKED SOUTHEASTWARD AT 07 KNOTSOVER THE PAST SIX HOURS. LATEST IMAGERY DEPICTS A SIGNIFICANTLY WEAKENED SYSTEM, WITH THE LOW LEVEL CIRCULATION CENTER (LLCC) POSSIBLY BECOMING SEPARATED FROM A SIGNIFICANTLY WEAKER CONVECTIVE SIGNATURE. SURFACE OBSERVATIONS FROM PAGO PAGO INDICATE SURFACE WINDS HAVE BEEN FROM THE EAST OVER THE PAST FOUR HOURS, WHICH PROVIDES FURTHER SUPPORT TO THE RELOCATED INITIAL POSITION, THOUGH THE OVERALL CONFIDENCE IN THE POSITION IS LOW.

23 Apr 2016 description

JTWC SUMMARY: T232100Z POSITION NEAR 14.2S 170.0W. TROPICAL CYCLONE 20P (AMOS), LOCATED APPROXIMATELY 25 NM NORTHEAST OF PAGO PAGO, HAS TRACKED EAST SOUTHEASTWARD AT 16 KNOTS OVER THE PAST SIX HOURS. A SMALL HOOK FEATURE INDICATING THE CENTER OF THE SYSTEM, LENDING MODERATE CONFIDENCE TO THE INITIAL POSITION. THE CURRENT INTENSITY IS ASSESSED AT 90 KNOTS IN CONGRUENCE WITH SUBJECTIVE DVORAK CURRENT INTENSITY ESTIMATES FROM PGTW/KNES/NFFN. TC AMOS SPED UP OVER THE PAST SIX HOURS WHILE CONTINUING TO TRACK EAST- SOUTHEASTWARD.

23 Apr 2016 description

Published: 23 April 2016

Suva, 23 April 2016 – Samoa Red Cross Society has been preparing stocks and personnel in advance of the arrival of Tropical Cyclone Amos, which is forecast to impact the country as a Category 4 cyclone later tonight.

The cyclone is expected to affect most of Samoa, in particular the island of Savai’i. Samoa Red Cross has moved stocks of tarpaulins for emergency shelter and other essential aid to the island in anticipation.

23 Apr 2016 description

JTWC SUMMARY: TROPICAL CYCLONE 20P (AMOS), LOCATED APPROXIMATELY 93 NM NORTHWEST OF PAGO PAGO, HAS TRACKED EAST-SOUTHEASTWARD AT 13 KNOTS OVER THE PAST SIX HOURS. THE CURRENT POSITION IS BASED ON RECENT SATELLITE FIXES FROM PGTW, KNES, AND PHFO. TC 20P HAS CONTINUED TO TRACK RAPIDLY EAST-SOUTHEASTWARD UNDER THE STEERING INFLUENCE OF A NEAR-EQUATORIAL RIDGE DURING THE PAST SIX HOURS. BASED ON RECENT STORM MOTION, NEAR-TERM FORECAST TRACK SPEEDS HAVE INCREASED AND THE NEAR- TO MEDIUM-TERM TRACK FORECAST HAS SHIFTED SLIGHTLY TO THE EAST FROM THE PREVIOUS FORECAST.

23 Apr 2016 description
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JTWC SUMMARY: TROPICAL CYCLONE 20P (AMOS), LOCATED APPROXIMATELY 171 NM WEST- NORTHWEST OF PAGO PAGO, HAS TRACKED EAST-SOUTHEASTWARD AT 15 KNOTS OVER THE PAST SIX HOURS. THE CURRENT POSITION IS BASED ON RECENT MICROWAVE SATELLITE IMAGERY INCLUDING A 230528Z CORIOLIS AND A 230623Z SSMIS PASS. THE INTENSITY OF 90 KNOTS IS CONSISTENT WITH SUBJECTIVE DVORAK INTENSITY ESTIMATES FROM MULTIPLE REPORTING AGENCIES. TC 20P HAS ACCELERATED EAST-SOUTHEASTWARD OVER THE PAST SIX HOURS UNDER THE STEERING INFLUENCE OF A NEAR-EQUATORIAL RIDGE TO THE NORTH AND EAST.